JPH0246166Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a panel frame body used in a control center or the like.

[Conventional technology]

Control centers are used in power plants and general industry for centralized control of auxiliary equipment, and unit devices such as molded circuit breakers and overcurrent protection devices are grouped into unit circuits in a closed outer box. It has been incorporated.

Generally, in order to make the panel frame that makes up the outer box easier to manufacture, two sets of quadrilateral frames that make up the front and rear surfaces are welded together, and then depth members are attached to the corners of these quadrilateral frames. A procedure is adopted in which a rectangular parallelepiped-shaped panel frame is formed by joining the plates by welding or bolting. In order to facilitate the above-mentioned welding and provide screw holes for bolt tightening, a joint is welded to the quadrilateral frame side at the joint between the quadrilateral frame and the depth member.

[Problem that the invention attempts to solve]

However, in the conventional board frame of this type,
There was a problem in that the width horizontal member and the depth horizontal member could not necessarily be joined easily. That is,
This is because the joint is simply disposed within a groove of the frame member of the quadrilateral frame body, so it is not easy to accurately position the joint. Furthermore, because the joint is small, sufficient clamping cannot be achieved, making it difficult to weld at an accurate right angle to the frame member. Furthermore, since the joint and the horizontal member in width or depth are simply butted together and welded or bolted, sufficient joint strength cannot be obtained unless the weld length is lengthened or the bolt diameter or number of bolts is increased. It was hot too.

The present invention was devised in view of these circumstances, and it is an object of the present invention to provide a board frame body in which a horizontal member in width and a horizontal member in depth can be easily joined.

[Means for solving problems]

The board frame according to the present invention has a width horizontal member having a pair of legs disposed vertically, a depth horizontal member having a pair of legs disposed horizontally, and one end of which is the width horizontal member. The two ends of the two legs are fitted into square holes drilled through the pair of legs, and the other end is joined via a joint that is fitted into a groove in the horizontal and deep member.

[Effect]

In the present invention, since one end of the joint fits into the width horizontal member and the other end fits into the depth horizontal member, it is possible to control these members so that they are connected at a predetermined position and in a predetermined shape. .

〔Example〕

Hereinafter, one embodiment of the present invention will be described in detail with reference to the drawings. Fig. 1 is an exploded perspective view showing the main parts of the panel frame according to the present invention, Fig. 2 is a perspective view showing the whole, Fig. 3 is a front view showing the main parts, and Fig. 4 is a side view, FIG. 5 is a cross section taken along the line -- in FIG. 2, and in these figures, the reference numeral 1 indicates a panel frame such as a control center. This board frame 1 is formed in the shape of a rectangular parallelepiped, and corner posts 2, 2... are arranged in the four corners, and between these corner posts 2, 2..., intermediate posts 3, 3 are arranged on the front and rear surfaces. Main pillars 4, 4 are arranged on both sides, respectively. Width horizontal members 5, 5... extending in the width direction are provided on the lower and upper sides of these columns.
and a depth horizontal member 6 that extends in the depth direction and is combined with the width horizontal members 5, 5... to form a quadrilateral frame.
6... are arranged.

To explain the manufacturing process, first, the upper and lower ends of the pair of left and right corner struts 2, 2 and the intermediate strut 3 are welded together using width horizontal members 5, 5 to form two sets of front and rear frames. Next, these two sets of frames are connected by horizontal members 6, 6, .

The corner support 2 has a groove-shaped cross section and has a width leg 2a and a pair of rising legs 2b, 2b. The width horizontal member 5 has a width leg 5 similar to the corner support 2.
a and a pair of rising legs 5b, 5b, each having a groove-shaped cross section, and the rising legs 5b, 5b.
5b are arranged to extend in the vertical direction. The corner support 2 is assembled to the width leg 5a so that its end face abuts, and fillet welded at weld build-up parts 30 and 31. Here, weld build-up portion 31
This is done in a notch 5c that is equal to the plate thickness of the corner support 2 at both ends of the width leg 5a, so that it fits within the notch 5c and does not require grinding.

Reference numerals 5d and 5d denote square holes that are bored at both ends of the pair of rising legs 5b and 5b and pass through the width horizontal member 5 in the orthogonal direction, and a joint 20 having a rectangular cross section is fitted into the square holes 5d and 5d from the inside. It is inserted so that The joint 20 is made of a flat steel member, and has a narrow portion 20a at one end that fits into the square holes 5d, and a base portion 20b extending inwardly from the rising leg 5b at the other end. The weld build-up portion 32 is formed in a convex shape and is fillet-welded within the groove of the width horizontal member 5, and is welded to the rising leg 5b.

The depth horizontal member 6 is formed in a cross-sectional groove shape with both ends extending from a vertical leg 6a, a horizontal long leg 6b, and a horizontal short leg 6c, and has horizontal long legs 6 as a pair of legs.
b and the horizontal short legs 6c are combined so as to extend in the horizontal direction. Here, the depth-horizontal member 6 is formed in a shape that allows the base 20b of the joint 20 to fit into the groove. That is, the width horizontal member 5 and the depth horizontal member 6 are joined via the joint 20.

6d is a stepped portion extending from the horizontal long leg 6b of the depth horizontal member 6 to facilitate attachment of a bottom plate, etc.;
Reference numeral 6e denotes a notch as an opening formed in the abutting portion of the horizontal member 6 with the joint 20. In the embodiment, this notch 6e is provided at the upper edge corner of the vertical leg 6a to expose a part of the joint 20 to the outside,
The edge of the notch 6e and the joint 20 are welded together at a weld overlay 33 that is plug welded. This welding work can be easily performed because the notch 6e is open to the outside, and the weld build-up portion 33 is not connected to the notch 6e.
Since it is within the range of 100%, there is no need for work such as finishing with a grinder.

In the panel frame body configured in this way, after the upper and lower ends of the pair of left and right corner struts 2, 2 and the intermediate strut 3 are welded and connected by width horizontal members 5, 5, two sets of front and rear frames are formed. The width horizontal members 5, 5... are joined to the depth horizontal members 6, 6... to form a rectangular parallelepiped.

To explain how to join this horizontal horizontal member 6, first, the joint 20 is inserted into the square holes 5d and welded at the weld build-up portion 32. At this time, the joint 20
Since they are fitted, they are regulated to be orthogonal to the width horizontal member 5 by the hole surfaces of the square holes 5d, 5d.
Next, when the depth horizontal member 6 is inserted into the joint 20, the joint 20 fits into the groove, so that the depth horizontal member 6 can be regulated to be orthogonal to the width horizontal member 5.

Therefore, the joint 20 can restrict the width horizontal member 5 and the depth horizontal member 6 to be connected at a predetermined position and in a predetermined shape. Then, in this state, by welding the edge of the notch 6e and the joint 20 using the weld build-up portion 33, the horizontal horizontal member 6 can be joined at an accurate angle without any clamping or the like. Further, the joint between the width horizontal member 5 and the depth horizontal member 6 is not simply butted as in the past, but a joint 20 is interposed between these members, and this joint 20 can be used for reinforcement. , bonding strength is also improved.

Part 6 is an exploded perspective view showing the main parts of another embodiment. In this figure, the same or equivalent members as shown in FIG. In this embodiment, the base 2 of the joint 20
0b is fastened with a bolt 21 passing through a horizontal short leg 6c which is an inner leg of the depth horizontal member 6. That is, 6f is a through hole drilled in the horizontal short leg 6c, and 20c is a screw hole cut in the joint 20. In this embodiment, in addition to having the same effects as those of the above-mentioned embodiment, the horizontal horizontal member 6 can be joined in a detachable manner by attaching and detaching the bolts 21.

[Effect of idea]

As explained above, according to the present invention, a width horizontal member with a pair of legs disposed in a vertical direction, and a depth horizontal member with a pair of legs disposed in a horizontal direction,
One end was fitted into a square hole drilled across the pair of legs at both ends of the width horizontal member, and the other end was joined via a joint fitted into the groove of the depth horizontal member. The joint can restrict the width horizontal member and the depth horizontal member so that they are connected at a predetermined position and in a predetermined shape.

Therefore, since it is possible to accurately join without using clamps or the like as in the conventional method, there is an effect that the width horizontal member and the depth horizontal member can be easily joined. Further, since the joint is interposed between the width horizontal member and the depth horizontal member, the joint strength can be improved compared to the conventional joint where both members are simply butted together.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view showing the main parts of the panel frame according to the present invention, Fig. 2 is a perspective view showing the whole, Fig. 3 is a front view showing the main parts, and Fig. 4 is a side view, 5 is a sectional view taken along the line -- in FIG. 2, and FIG. 6 is an exploded perspective view showing the main parts of another embodiment. 2... Corner support, 5... Width horizontal member, 5d,
5d...Square hole, 6...Depth horizontal member, 20...Joint.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) Corner posts disposed at the four corners, horizontal horizontal members connecting the upper and lower ends of the corner posts, and the depth that is combined with the horizontal horizontal members to form a quadrilateral frame. In the board frame body comprising a horizontal member, the width and depth horizontal members are formed to have a groove-shaped cross section, a pair of legs of the width horizontal member are oriented in the vertical direction, and a pair of legs of the depth horizontal member are oriented in the horizontal direction. These members are arranged and combined so as to extend, and one end of these members is fitted into a square hole bored through the pair of legs at both ends of the width horizontal member, and the other end is fitted into a square hole drilled through the pair of legs at both ends of the width horizontal member. A board frame body characterized by being joined via a joint fitted into a groove of a horizontal member. (2) A practical use characterized in that the joint is welded to the width horizontal member within its groove, and to the depth horizontal member within an opening drilled in the abutting portion of the depth horizontal member with the joint. A panel frame according to claim 1 of the patent registration claim. (3) The utility model registration request is characterized in that the joint is welded to the width horizontal member in its groove, and is fastened to the depth horizontal member with a bolt that passes through the inner leg of the depth horizontal member. The board frame described in scope 1.